This shows economics at work. The rancher obviously thought it worthwhile to transport the sheep (someone let me know if these are actually goats. UPDATE: Those are definitely sheep. Goats, apparently, will eat anything that doesn’t move and a few things that do. We suspect that having the vines demolished is not in the owner’s financial interest.) to the vineyard to graze down the cover crop, and the vineyard owner thought it worth the compaction cost to save on fuel and labor by not having to mow.